Invention Grant
- Patent Title: Gas spring compensation marine acoustic vibrator
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Application No.: US14145214Application Date: 2013-12-31
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Publication No.: US09864080B2Publication Date: 2018-01-09
- Inventor: Stig Rune Lennart Tenghamn , Jonathan David Snodgrass , Bo Carl Fredrik Löfgren , Karl-Henrik Ryttersson
- Applicant: PGS Geophysical AS
- Applicant Address: NO Oslo
- Assignee: PGS Geophysical AS
- Current Assignee: PGS Geophysical AS
- Current Assignee Address: NO Oslo
- Main IPC: G01V1/04
- IPC: G01V1/04 ; G01V1/135 ; G01V1/145 ; G01V1/38 ; G10K9/12
Abstract:
Embodiments related to restriction of gas flow in a marine acoustic vibrator to compensate for gas spring effects. An embodiment provides a marine acoustic vibrator, comprising: an outer shell; and a variable gas flow restrictor disposed within the outer shell; wherein the marine acoustic vibrator has a resonance frequency selectable based at least in part on the variable gas flow restrictor.
Public/Granted literature
- US20140340985A1 Gas Spring Compensation Marine Acoustic Vibrator Public/Granted day:2014-11-20
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